23740913 has 4 divisors (see below), whose sum is σ = 27132480. Its totient is φ = 20349348.

The previous prime is 23740907. The next prime is 23740919. The reversal of 23740913 is 31904732.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (23740907) and next prime (23740919).

It is a cyclic number.

It is not a de Polignac number, because 23740913 - 2⁸ = 23740657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (23740919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1695773 + ... + 1695786.

It is an arithmetic number, because the mean of its divisors is an integer number (6783120).

Almost surely, 2^23740913 is an apocalyptic number.

It is an amenable number.

23740913 is a deficient number, since it is larger than the sum of its proper divisors (3391567).

23740913 is an equidigital number, since it uses as much as digits as its factorization.

23740913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391566.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 23740913 is about 4872.4647766813. The cubic root of 23740913 is about 287.4081894618.

The spelling of 23740913 in words is "twenty-three million, seven hundred forty thousand, nine hundred thirteen".